Geospatial & Privacy protocols are the most unique challenges we're trying to solve in blockchain.

Is there anything else you can think of?

I'm trying to explore what my research can be applied. So far it seems that it can be really good for geospatial and privacy protocols.

Okay. but how can we get more devices out there? There aren't enough

How can we incentivize the spread of IoT?
I feel like it's a critical technology if blockchain ever wants to be truly anchored into the real world.
Are VR & AR games the best way?

We've already got cell phones & cars, but that's not enough.
What other kinds of devices can we even have out there?
Upgrading things street lights, sure. CCTV cameras, yikes. But what else?

maybe we don't need it everywhere, but it will be good to have IoT dense areas somewhere.